Change ioremap_nocache to ioremap.

ioremap defaults to ioremap_nocache since 2.6 and latter is removed in
5.6 kernel.
See https://github.com/torvalds/linux/commit/4bdc0d676a643140bdf17dbf7eafedee3d496a3c

Change-Id: Ifd9ff9db5937abf487d57861465cd58b4df18ac3
diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 16112bb..139616b 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -316,8 +316,8 @@
 	}
 
 	gasket_dev->bar_data[bar_num].virt_base =
-		ioremap_nocache(gasket_dev->bar_data[bar_num].phys_base,
-				gasket_dev->bar_data[bar_num].length_bytes);
+		ioremap(gasket_dev->bar_data[bar_num].phys_base,
+			gasket_dev->bar_data[bar_num].length_bytes);
 	if (!gasket_dev->bar_data[bar_num].virt_base) {
 		dev_err(gasket_dev->dev,
 			"Cannot remap BAR %d memory region %p\n",